I tested all four CSS Zen Garden sites with VoiceOver (MacOS X 10.4 Tiger) and found that the first three were identical to the results Access Matters found but the fourth one listed the download links first and then everything else as expected. I am not sure why that one page was different. I checked the HTML and it is identical except for the specific links to the css file.
At any rate, it was good to have my assumptions confirmed (in fact, they shouldn’t have been assumptions given that all screen readers are weird in different ways at different times). I went ahead and recorded the three tests for column order using VoiceOver in Tiger (MacOS X 10.4).
123.mp3 (1-2-3 column order)
213.mp3 (2-1-3 column order)
321.mp3 (3-2-1 column order)
Great idea for a test! I plan on doing more testing with VoiceOver as these come up.